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All types of roofing materials

Roofing, as an essential part of any building, must protect the dwelling from the impact of atmospheric precipitation and retain warmth inside the premises. In addition to its primary functionality and practicality, it should also have a positive aesthetic impact.

There is a wide variety of finishing materials available on the market. Let's discuss each type of roofing separately, describe their properties and characteristics, to help you make an informed choice in favor of a high-quality and durable material.

Sloping roof (our job)

Roofs can be flat or pitched. Flat roofs are divided into usable and non-usable. Non-usable ones are traditional (soft). They consist of a load-bearing plate, thermal insulation, and a waterproofing layer (usually asphalt-based). Usable roofs are equipped for cafes, relaxation areas, and more. They require a solid base (e.g., concrete screed), and the insulation must have increased durability.

For pitched roofs, corrugated sheets and various types of roofing tiles are suitable, including asphalt, cement-sand, and metal roofing tiles.

Depending on their appearance and manufacturing method, all roofing materials can be categorized as follows:

  • Individual roofing materials:

  1. Ceramic tiles.

  2. Cement-sand tiles.

  3. Slate roofing.

  • Sheet roofing:

  1. Metal roofing.

  2. Composite roofing tiles.

  3. Profiled decking.

  4. Onduline.

  5. Asbestos cement sheets.

  6. Standing seam roofing.

  7. Polycarbonate.

  • Soft roofing:

  1. Flexible roofing tiles.

  2. Torch-down roofing.

  3. Membrane roofing.

  • Liquid roofing:

  1. Mastic roofing.

1. Ceramic roof tiles

Roofing with Ceramic Tiles

Ceramic tiles are made from fired clay at temperatures around 1000°C, which makes them durable and sturdy. Over time, their red hue may darken slightly due to exposure to external conditions.

Depending on the manufacturing and processing methods, there are several types of ceramic tiles:

  1. Regular Ceramic Tiles

  2. Flat Strip Tiles: These are laid with overlap, and the joints between rows are concealed by the tiles above.

  3. Grooved Strip Tiles or Stamped Tiles: Each element is interlocked and firmly holds adjacent tiles.

  4. Grooved Ceramic Tiles: These have a curved shape and are laid in two rows, with the bottom row facing outward and the top row facing upward.

  5. Single Wave or Double Wave Tiles.

Some types of tiles are glazed before firing to enhance their water-repellent properties.

Depending on the coating, ceramic tiles come in three varieties:

  1. Engobed Tiles: Engobe is a special paint for ceramic products made from various clays mixed with minerals and water before application. Consequently, after the engobing process (application and firing), tiles can be colored differently.

  2. Glazed Tiles: Glaze is a glass-like colored coating made from the fusion of low-melting or high-melting glasses with pigments. High-melting glaze is applied directly to the tiles just before firing, with the glazing process occurring at temperatures between 1000°C and 1400°C.

  3. Natural Tiles: These tiles have a rough surface and an orange-brown color.

Ceramic tiles are considered a long-lasting roofing material. Tiles of this type have consistent dimensions: length and width of 30 cm, weight of 2 kg or more. The optimal roof pitch for laying ceramic tiles is 22-60 degrees, but installation is possible on steeper or shallower slopes. A finished tiled roof has the appearance of continuous scales.

Ceramic tiles can be used to cover the roofs of various buildings and structures, including brick, wood, or stone houses.

Advantages of this material include:

  • Long service life (up to 150 years without repairs), making it the most durable roofing material.

  • Resistance to weather conditions and frost (withstanding up to 500 freeze-thaw cycles).

  • Fire safety, as the material is non-combustible.

  • Corrosion resistance.

  • Decent sound and thermal insulation properties.

  • Ease of repair: damaged tiles can be easily removed and replaced with new ones.

Disadvantages include:

  • Being one of the most expensive roofing materials.

  • Fragility of the material.

  • Installation intricacies due to the material's weight, requiring additional rafters. Covering complex roof shapes may need additional materials like fasteners, sheathing, insulation, etc.

2. Cement-sand roofing tile (mineral roofing tile)

Cement-Sand Roofing

Sand roofing consists of a mixture of cement, quartz sand, pigments (iron or chromium oxides), and water, which is not fired but pressed. After the material is manufactured, it is either colored using a wet method (applying glaze) or left uncoated and dried at a temperature of around 60⁰C for about a day. Afterward, it can be painted again if necessary. The weight of such roofing is 35 - 40 kg per 1 m2.

However, there is a higher-quality sand roofing that undergoes the so-called "three-stage processing":

  • 1st layer - high-strength concrete;

  • 2nd layer - colored cement composition, which smooths the outer surface of the roofing;

  • 3rd layer - acrylic coating with double application.

For the installation of cement-sand roofing, the optimal roof pitch angle should be between 20 and 60 degrees. This type of roofing is resistant to moisture and atmospheric pressures; it is a modern material with over 300 color and shape variations. Such roofing is suitable for any architectural design concept by a designer.

Advantages of the material:

  • Lower cost (compared to ceramic roofing).

  • Long service life (up to 100 years).

  • Lighter weight (compared to ceramic roofing).

  • Resistance to climate conditions, temperature fluctuations, and ultraviolet radiation.

  • High resistance to chemical aggressors.

  • Good sound insulation properties.

  • Fire resistance.

Disadvantages of the material:

  • Relatively high price.

  • Fragility and susceptibility to breakage of the material.

3. Shale roofing

Slate Roof

A slate roof is a premium, artisanal material used for the pitched roofs of houses. Roofing slate consists of tiles of various sizes and geometric shapes. It is produced by splitting slabs followed by manual processing. The color palette of slate primarily includes dark tones, ranging from black, dark brown, and dark green to gray. There are also brighter shades of slate, but typically such slate is used for decorative elements and ornaments.

Slate tiles have dimensions: width 15 - 30 cm, length 20 - 60 cm, thickness 4-9 mm. Weight ranges from 25-50 kg per 1 m2. It is used on pitched roofs with a slope greater than 25 degrees. It can be installed on roofs with varying complexity and roof slope geometries.

Advantages of the material:

  • Long service life (approximately 200 years). It is the most durable roofing material.

  • High strength and material density.

  • Resistance to color changes over its entire service life.

  • Resilience to weather conditions and ultraviolet radiation.

  • Frost resistance. Resistant to sharp temperature fluctuations.

  • High corrosion resistance properties.

  • Low water absorption.

  • Excellent sound insulation properties.

  • Fire safety.

  • Environmentally friendly.

Disadvantages of the material:

  • One of the most expensive roofing materials. The high cost is due to the difficulty of sourcing raw materials (deep-seated rock formations) and the use of skilled manual labor in production. The price depends on the grade of slate, the shape and size of the tiles, and the installation method.

  • Significant weight.

  • Requires highly skilled specialists.

  • Complexity and high labor costs for the installation crew.

4. Metal roof tiles

Metal shingle roofing

Metal roofing tiles are made from steel, coated with zinc, and treated with a polymer coating for durability. A protective lacquer is applied on top, and several layers are present inside (primer, passivating aluminum coating). The galvanized sheet undergoes rolling and stamping, after which it takes on the shape that mimics natural tiles.

The width of metal roofing tiles depends on the profile height: the higher the profile, the narrower the width. The weight of the finished sheet is 3-5 kg per 1 m2. This material is suitable for roofs with a slope angle of 12-15° or more. Flat roofs are often framed with metal roofing tiles by laying them at an incline. This creates a false roof.

The material varies in composition, can be produced in any profile, and is cut to a specific roof size.

Types of profiles:

  1. Monterrey, with a width of 1.19 m and a wave pitch of 0.35 m.

  2. Super Monterrey. Similar to the previous profile but with a height of 25+21 mm.

  3. Maxi-profile, identical in shape to "Super Monterrey" but with a wave pitch of 0.4 m.

Composition of metal roofing tiles:

  1. Polymer coating protects the roof from natural elements.

  2. Primer protects the material from corrosion.

  3. Passivation is an additional layer of primer that protects zinc from corrosion.

  4. Zinc provides corrosion protection and lasts longer than its counterparts.

  5. Steel, thickness ranging from 0.35 mm to 0.52 mm.

  6. Protective paint is not used in all models.

Depending on the thickness, metal roofing tiles are divided into 3 classes:

  • Economy: Thickness 0.4 mm - lower quality material.

  • Standard: Thickness 0.45 mm - average material quality.

  • Premium: Thickness 0.5 mm and above - highest quality material.

Metal roofing tiles are used as roofing for private houses, industrial buildings, garages, warehouses, and temporary structures. This material can even be laid over an existing roof.

Advantages of the material:

  • Long service life (30-50 years).

  • Affordable cost.

  • Fire safety.

  • High mechanical strength.

  • Low weight.

  • Easy installation.

Disadvantages of the material:

  • Requires additional insulation.

  • High material consumption (a lot of waste during installation).

  • Lack of sound insulation.

5. Composite roofing shingles

Installation of composite roofing shingles

Composite roofing tiles - are a multilayer roofing material consisting of steel sheets coated with an anticorrosive aluminum-zinc alloy and a layer of crushed stone or ceramics. An acrylic layer is applied to the top stone layer, which enhances resistance to environmental influences. The acrylic coating also prevents material fading. Jade, quartz sand, basalt, or granite are used to make the stone chips. Thanks to the granulate, the material gains higher sound insulation and resistance to solar ultraviolet radiation.

The material possesses excellent decorative qualities. Depending on the modification, composite roofing can imitate products made of clay, wooden shingles, ceramics. The weight of one sheet is 6-8 kg per 1 m2.

Advantages of the material:

  • Long service life (on average, 50 years).

  • Lightweight.

  • High-quality material execution.

  • High mechanical strength.

  • High heat and moisture resistance.

  • Good sound insulation properties.

  • Resistance to environmental factors: sharp temperature fluctuations, ultraviolet rays, rain, wind.

  • Fire resistance, the ability to withstand high temperatures and effectively contain the spread of fire.

  • High flexibility and ease of processing. The material can be used for roofs of any shape.

Disadvantages of the material:

  • Relatively high cost.

  • Strict installation recommendations must be followed. Improper installation can lead to material corrosion.

  • Poor roof vapor permeability, leading to a lack of natural air circulation. The need to install a ventilation system under the roof.

6. Profiled sheeting (profiled metal sheet, corrugated sheet)

Profiled Sheets

Profiled decking is made from cold-rolled steel with hot-dip galvanizing and, in terms of its characteristics, is almost indistinguishable from metal roofing. The sheets can have either a rectangular or corrugated profile and are coated with either aluminum-zinc or zinc layers on all sides. There is also additional polymer protection on top. The profile can take the form of a trapezoid, waves, or a rectangle. The following types of profiled decking are used for roofing: C8, C21, HC35, C44, H57, H60.

Profiled decking is used in various construction sectors, such as roofing for houses and fencing. The material is lightweight while maintaining high strength. The height of the profile is considered an indicator of high-quality profiled decking. The higher the corrugations of the material, the stiffer and stronger it is.

Varieties of profiled decking include:

  1. Wall profiled decking, with a thickness of 0.4 mm and a height of 0.8-2.1 cm, designed for vertical installation (fences, walls, etc.).

  2. Roof profiled decking, with a thickness of 0.4-0.7 mm and a height of 2-10 cm (used in low-rise construction).

  3. Load-bearing profiled decking, with a thickness of 0.7-1.2 mm and a height of 7.5-10.0 cm, used where significant loads are placed on it, such as for covering a concrete roof.

Profiled decking is used for roofing industrial facilities, shops, car washes, and utility buildings (garages, sheds, etc.). The allowable roof slope for installing profiled metal sheets should be no less than 10°.

The advantages and disadvantages of profiled decking are similar to metal roofing.

Advantages of the material:

  • Long service life (up to 50 years).

  • Affordable cost.

  • Fire safety.

  • High mechanical strength.

  • High resistance to temperature fluctuations.

  • Low weight.

  • Simple installation.

Disadvantages of the material:

  • Requires additional insulation.

  • High waste percentage during installation.

  • Poor sound insulation.

  • Susceptible to corrosion.

7. Onduline (Euroshield, Aqualine)

Onduline roofing material

Corrugated board, or ondulin, is a sheet material made from cellulose raw materials. The sheets are pressed, given a wavy shape by heating them to 120 degrees Celsius, and then treated with polymer resins, asphalt, and painted in the desired color. The end result is a material that resembles asbestos cement sheeting but has different properties. When properly installed, ondulin can last for more than 50 years.

Due to several characteristics, this material is primarily used for roofing small utility and technical buildings (private houses, cottages, sheds, garages, production workshops, etc.). The minimum roof pitch suitable for ondulin installation is 6 degrees. Ondulin's flexibility makes it suitable for roofs with complex configurations. Typical standard sizes are 2000 x 960 mm or 2000 x 760 mm with a thickness of 3 mm and a wave height of 36 mm (8/10 waves). On average, one sheet weighs 6.5 kg.

Advantages of the material:

  • Affordable cost.

  • Water resistance.

  • Resistance to atmospheric conditions.

  • Resistance to high loads.

  • High sound insulation and sound absorption.

  • Low weight.

  • Environmental friendliness.

Disadvantages of the material:

  • Flammability.

  • Not colorfast, fades over time.

  • Softens at high temperatures.

8. Slate

Slate roof

Slate is the most popular and affordable roofing material. Slate sheets are made from an asbestos-cement mixture, consisting of 85% Portland cement and 15% asbestos. There are many variations of slate, differing in size, thickness, the number of waves, and wave height.

Standard slate sheet dimensions: Length 1750 x Width 980-1130 mm, weight 10-15 kg (with 6-8 waves). Slate can be installed on roofs with slopes ranging from 12 to 60 degrees.

This material is primarily used for covering the roofs of utility buildings and warehouses.

Advantages of the material:

  • Low cost.

  • Long service life (up to 50 years).

  • Ease of handling. Slate can be easily cut with various tools.

  • Non-flammable.

Disadvantages of the material:

  • Fragility.

  • High hygroscopicity leads to moisture accumulation, which can result in material fading and the growth of moss.

9 . Falz roofing

Contemporary standing seam roofing

Corrugated roofing is metal strips (sheets) with a smooth surface, made from galvanized or painted steel, copper, or aluminum, with or without a polymer coating. It gets its name from the special connection of the sheets - a lock called a "standing seam." Along the length, the sheets are fastened together with standing seams, and along the width - with lying seams. The installation of such roofing is carried out using a special machine.

Types of lap joints

Standing seam roofing is used to cover the roofs of cathedrals, country houses, industrial buildings, and structures. The roof slope for laying standing seam sheets should be no less than 14-15 degrees. By meeting certain conditions, steel sheets can be installed on a roof with a slope as low as 7 degrees. The installation of such roofing is quite complex. The service life of standing seam steel roofing is about 30 years, aluminum - 80 years, copper - 100 years. The average size of a standing seam roofing sheet is W70 x L110 cm with a thickness of about 0.3 mm (copper). The weight of a copper sheet is 5-10 kg per 1 m2, aluminum - 2-5 kg per 1 m2. Copper roofing is considered the most elite material among those mentioned.

Advantages of the material:

  • Lightweight.

  • Long service life (30-100 years depending on the metal).

  • Waterproof, strong, reliable.

  • Frost resistance, resistance to temperature fluctuations.

  • Non-flammable. Fire safety.

  • Environmentally friendly.

Disadvantages of the material:

  • Relatively high cost (copper products).

  • Poor thermal and sound insulation.

  • Ability to accumulate static electricity. Requires lightning protection (lightning rods).

  • High wind susceptibility.

  • Not suitable for roofs with complex configurations.

10. Polycarbonate

Roof made of roofing polycarbonate

Roofing polycarbonate is a polymer that is resistant to temperature and external factors, and it contains a large number of air chambers in its structure. This type of covering is lightweight, durable, excellent at allowing sunlight to pass through, and looks aesthetically pleasing. It is widely used in the construction of greenhouses, gardens with live plants, and serves as an excellent solution for covering the roofs of various structures and utility buildings (gazebos, awnings, covered pools, garages, saunas, greenhouses, etc.).

Varieties of roofing polycarbonate:

  1. Profiled: These are sheets of solid polycarbonate with a wavy or trapezoidal profile. It is also known as corrugated or wave polycarbonate for roofing. It is used for making facade or roofing coverings, garden awnings, extensions, greenhouse roofs, dome structures, conservatories, and parking canopies.

  2. Cellular: This plastic is used for construction and advertising purposes. It consists of transparent or colored sheets with a cellular structure (independent air cells throughout the material). The sizes of cellular sheets range from 2.1 x 6 meters to 2.1 x 12 meters, with a thickness ranging from 3 to 16 millimeters. Many suppliers sell this material by the meter. It is used to create transparent roofs, partitions, interior design elements, and outdoor advertising.

  3. Monolithic (solid): This is a solid polymer sheet without any voids inside, resembling silicate glass but differing in terms of lightweight and durability. Solid polycarbonate is the most optimal choice for building roofs of buildings and structures. The thickness of the material varies from 0.75 to 40 millimeters, but the optimal thickness is around 10-30 millimeters. Roofing monolithic polycarbonate comes in different colors, sizes, and surface structures.

Varieties of Polycarbonate

Depending on the characteristics of the sheet production, sheets can be multi-layered or single-layered. The outer layer of the material with a rough surface resists negative factors, the second layer provides UV filtration, and the third enhances the mechanical strength of the entire structure.

When choosing polycarbonate, it is necessary to consider the allowable roof load and the purpose of the structure. If the snow cover in winter reaches 50-70 cm, then the thickness of polycarbonate for the roof should be at least 15-25 mm.

Polycarbonate can be used to cover roofs of any complexity and configuration with any slope. The material is highly flexible.

Depending on the thickness of the sheets, each type of roofing polycarbonate has its own purpose:

  • 32 mm - used for roofing details with special requirements, suitable for heavy loads;

  • 16 mm - suitable for large-area objects: buildings, roofs for large spans, gas stations, parking structures, and bus stations. This model can withstand heavy loads;

  • 10 mm - suitable for vertical surfaces: sports facilities, pools;

  • 8 mm - canopies, roofs, carports, balcony glazing, and skylights;

  • 4 mm - greenhouses, canopies;

  • 3.5 mm - hothouses, greenhouses.

Advantages of the material:

  • Polycarbonate roofing can last from 5 to 20 years.

  • Mechanical strength. Resistance to static and dynamic loads.

  • Resistance to temperature fluctuations.

  • High level of UV protection.

  • Fire safety. The polymer does not burn even when exposed to an open flame and does not release toxic substances and harmful compounds into the environment when heated.

  • Low weight.

  • Easy installation.

Disadvantages of the material:

  • Formation of small scratches and abrasions.

  • Expands under the influence of high temperatures. Precise installation recommendations must be followed (leave thermal gaps).

  • Low resistance to chemical exposure. Interaction with concentrated alkaline and acidic substances (e.g., ammonia) can cause the material's structure to break down.

11. Flexible shingles (shinglas, soft roofing, asphalt shingles)

Roof finishing with soft roofing material

Soft roofing, unlike other roofing materials, is a flexible and pliable material capable of bending at any angle; it can come in the form of roll roofing or flexible shingles.

The material is made from fiberglass, impregnated with modified bitumen, and then coated with crushed basalt or slate on top. Soft shingles are used for various types of buildings because they are durable and visually appealing. Thanks to the rough surface, snow is retained, which is a definite advantage. However, due to the roughness of the material, leaves can accumulate, and moss may grow over time, leading to damage to the shingles and necessitating replacement.

Among the varieties of flexible shingles, copper shingles stand out, as they include a special SBS modifier in the bitumen base. It enhances the elasticity of the covering, allowing it to compensate for the deformation of all roof elements made of wood or metal due to temperature fluctuations. The top layer of copper flexible shingles consists of a durable copper sheet without impurities and additives. Due to the variety of petal shapes and types of copper, the shingles become a strong and presentable covering for any architectural forms and design solutions. It has a smooth and even surface.

The weight of soft shingles is 4-8 kg per 1 square meter. The average lifespan of the material is 15-50 years. The roof pitch for its installation ranges from 12 to 90 degrees. This roofing is suitable for roofs of any complex shape and configuration, as well as for buildings with mansard roofs.

Advantages of the material:

  • Affordable cost.

  • High service life (up to 50-70 years).

  • Excellent hydro, sound, and thermal insulation properties.

  • Absence of corrosion and condensation.

  • Resistance to aggressive environmental factors.

  • Ease of installation.

Disadvantages of the material:

  • Fragility in severe frost.

  • Softening, melting, and odor at high temperatures (heat).

  • Flammability.

12. Melt-on Roofing (Roll-on Melt-on Roofing, Waterproofing, Glass Wool Insulation)

Installation of a Guided Roof

A torch-on roof, also known as a modified bitumen roof, is a rolled roofing material made from bitumen and bitumen-polymer compounds. The roofing material is constructed using fiberglass matting, fiberglass fabric, or polyester as the base. The base is saturated with oxidized bitumen, and to enhance elasticity and durability, either SBS (styrene-butadiene-styrene) or APP (atactic polypropylene) modifiers are added. Following this, a polymer layer is applied, followed by a topping of sand, fine shale, or mica.

In other words, SBS modifier is an artificial rubber, while APP modifier is an artificial plastic.

Device for Directed Roofing

Flame-applied roofing materials differ in composition, which greatly affects their overall performance characteristics and price range. Among their components, the following are distinguished:

  1. Polyester - one of the most reliable and expensive materials for flame-applied roofing. It consists of special polymer fibers arranged randomly, giving this material the ability to elongate up to 60% when subjected to a tensile force of more than 35 kg/cm. Flame-applied roofing with polyester is considered the strongest and of higher quality.

  2. Fiberglass Fabric. This base consists of interwoven fiberglass threads, which are more cost-effective than polyester. The elongation here is much less, only 2%, and the tensile strength is up to 80 kg/cm. Fiberglass fabric coatings are considered of good average quality.

  3. Glass Cloth. This material is not as strong as the previous two options, and the quality depends on the binding agent used. Glass cloth is sufficiently durable but not always suitable for continuously used structures. The tensile strength here is only up to 30 kg/cm, and elongation is completely absent. In general, glass cloth coatings are considered of not very good quality.

The roof pitch at which this material can be used is 2-11 degrees. A gas burner is used for the installation of the roofing membrane. This type of roofing is used on flat roofs of multi-story residential buildings and industrial structures. The installation of soft flame-applied material on a sloped roof is also possible if it is inclined at no more than 50°.

Advantages of the Material:

  • High operational performance. Durability.

  • Practicality. This roofing can be laid over the old covering.

  • Excellent sound and waterproofing properties.

  • Frost resistance, resistance to rapid temperature fluctuations. Ability to withstand high temperatures without altering its composition.

  • Resistance to corrosion or mold.

  • High repairability.

  • Ease of installation work.

Disadvantages of the Material:

  • Relatively quick wear and tear.

  • Prohibition on use on flammable bases (roll material is typically laid only on concrete or cement-sand screed).

13. Membrane roofing

Membrane roofing installation technology

A membrane roof is a roll-type covering with high waterproofing properties, composed of synthetic rubber or polymer materials. Its elasticity allows for the creation of various planes and slopes, making it possible to implement complex geometric shapes. The lifespan of such a roof can reach up to 50 years.

Depending on the composition, membrane roofing is classified into three types:

  1. TPO (Thermoplastic Olefin): This roll-type covering is based on thermoplastic polyolefins, which are a mixture of polypropylene and ethylene propylene polymers. TPO membranes also contain pigments, fire retardants, and UV absorbers. Such a membrane can be manufactured with or without reinforcement with polyester mesh or fiberglass. Roof installation is done by welding using a special apparatus that provides hot air at temperatures of 400-600 °C. The main drawback of TPO membrane roofing is its low elasticity and the need for regular maintenance.

  2. EPDM (Ethylene Propylene Diene Monomer): EPDM is manufactured from synthetic rubber, which gives it high elasticity. There are two-ply EPDM membranes made from rubber and bitumen, with fiberglass serving as the reinforcing material. During installation, seams need to be glued together. Such seams are less durable than welded ones.

  3. PVC (Polyvinyl Chloride): PVC membrane roofing is a roll-type covering whose base is plasticized polyvinyl chloride with added plasticizers, stabilizers, UV inhibitors, and biocides. PVC roof membranes can be produced with polyester or fiberglass reinforcement or without reinforcement. Installing a PVC membrane roof is relatively simple, but it is important to follow the recommended installation procedures.

Membrane roofing systems are used on large areas, including roofs of residential, industrial, logistics, and commercial buildings, as well as structures with complex geometry, including spherical roofs.

This material is successfully used on flat surfaces with the subsequent creation of additional useful areas on them (recreation areas, small gardens, summer dining areas, etc.).

The weight of the roll membrane roofing is 1.3 kg per 1 m2. The width of the sheet can be up to 15 m, the length up to 60 m, and the thickness ranges from 0.8 to 2 mm.

Liquid (mastic) roofing is a type of membrane roofing and is represented by

Pros of the material:

  • Long service life (50-70 years).

  • High resistance to puncture, tearing, and stretching.

  • High elasticity.

  • Resistance to climatic conditions: UV rays, temperature fluctuations, wind loads. Frost resistance. Thermoplasticity.

  • Fire resistance. Fire safety.

  • Vapor permeability.

  • Moisture resistance.

  • Easy installation.

Cons of the material:

  • High cost.

  • Shortcomings of each type of membrane: PVC membrane emissions are harmful to health, TPO coatings are not sufficiently elastic, and EPDM membranes require special tape for sealing, making the connections less durable compared to welding.

  • Low resistance to chemical aggressors: solvents and organic oils can damage the membrane.

14. Rubberized roofing

Installation of Mastic Roofing

Mastic roofing is a polymer membrane in the form of a viscous liquid (mastic) based on oligomeric products, which is applied to the roof surface by pouring (poured roofing). When exposed to air, this liquid solidifies and forms a smooth, seamless, rubber-like coating. Depending on the construction, mastic coatings can be:

  • Unreinforced (with the addition of mineral chips or fine gravel for additional strength).

  • Reinforced (strengthened with fiberglass or glass fiber).

  • Combined (with the additional use of roll materials for protection and reliability).

Mastic coatings have good adhesion to concrete, metal, and bituminous materials. Mastic roofing is installed on roofs with a slope of no more than 25 degrees. It is well-suited for use in regions with harsh winters or hot summers. If the building's roof is flat, this type of covering can make it usable.

Advantages of the material:

  • High moisture resistance. Excellent waterproofing.

  • Absence of seams.

  • Resistance to rapid temperature fluctuations, frost resistance.

  • Fire resistance. Fire safety.

  • Ease of installation.

Disadvantages of the material:

  • It can be challenging to achieve uniform thickness of the coating across the entire surface.

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